Inventor · disambiguated record
Ryoei Hasegawa
Also filed as: HASEGAWA RYOEI
3 granted patents·72 citations·filing 1986–1990
73Inventor score
Top patents by PatentIndex Score
3 records- 0175US4679968AIndexable cutter insertMITSUBISHI METAL CORP·Filed 1986·Granted Jul 14, 1987·36 cites·6 claims
- 0266US5026221ARotary cutting toolMITSUBISHI METAL CORP·Filed 1990·Granted Jun 25, 1991·19 cites·28 claims
- 0353US5090849ARotary cutting toolMITSUBISHI MATERIALS CORP·Filed 1990·Granted Feb 25, 1992·17 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →